A very enlightening talk from Bill Gates about two big issues: how to stop deadly diseases, and how to improve education. Interesting quote: "because malaria is only in poor countries, it does not get much investment. There is more money put into baldness drugs, than into malaria."

Siftables are intelligent, cookie-sized digital blocks with little displays on them. These futuristic toys can do math, play music and can even be used to create stories all by moving around and re-arranging the blocks.